Charlotte Moore, director of BBC Content, and Ben Stephenson, former controller BBC Drama Commissioning, ordered the show. HBO has acquired U.S. and Canadian rights.

The series marks a continuation of the BBC’s relationship with Rowling’s production company, Brontë Film and TV, and Rowling herself. Brontë produced Rowling’s “The Casual Vacancy,” a three-part serial, which aired on BBC One in 2015.